I have a 2008 6.6 LMM 3500hd quad cab 8ft bed with 126000 miles completely stock. I kept getting the code for insufficient air flow on egr, so i took the intake off to clean it as it was about stopped up. Needless to say the oring where the pipe connects to the throttle body disappeared and had issues but got it fixed. Now im looking at doing an egr delete along with 4in exhuast with muffler and doing efi live but also want a monitor as well so i can keep check of things as i tow alot. I want good stuff but also dont want to break the bank at the same time. Where would be the best place to either get a kit with all of it or the different places that have known reputation for their quality but cost efficient. I have looked through banks, mbrp, alligator performance, sinister and well the list goes on i just want opinions of good quality but cost efficient places to order from. Thanks